地质勘查测绘是国家一项基础性、前期性的工作,是我国经济建殴和地质找矿工作的尖兵。目前,全国地质勘查测绘队伍已拥有5万余人,约占全国测绘队伍总人数的1/3,在专业结构上,设有大地测量、航空摄影测量、地形测量、工程测量、物化探测量、矿山测量、海洋测量、重力测量、电子计算 Geological surveying and mapping is a basic and early stage work of the country. It is a pioneer in economic construction and geological prospecting in China. At present, the national geological surveying and mapping team has more than 50,000 people, accounting for about 1/3 of the total number of surveying and mapping teams in the country. In terms of professional structure, there are geodetic surveys, aerial photogrammetry, topographic surveys, engineering surveys, and physical and chemical surveys. Mine Survey, Ocean Survey, Gravity Survey, Electronic Calculation